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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 723 · 40 questions
TalentJR

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

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  1. 1.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) ammeter (d) junction
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
  4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) cell (c) wire (d) ammeter
  5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) voltmeter (d) battery
  6. 6.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) a straight line (d) a circle with A inside
  7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) switch (c) motor (d) resistor
  8. 8.True or false: a straight line is the symbol for a resistor. (a) True (b) False
  9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
  10. 10.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
  11. 11.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) bulb (d) diode
  13. 13.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  14. 14.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
  15. 15.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
  16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  17. 17.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) battery (c) bulb (d) diode
  19. 19.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) capacitor (d) junction
  21. 21.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
  22. 22.True or false: a circle with an X in it is the symbol for a wire. (a) False (b) True
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) resistor (c) ammeter (d) motor
  24. 24.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with M inside (c) two or more cell symbols (d) a dot where wires meet
  25. 25.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) diode (c) junction (d) capacitor
  27. 27.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
  28. 28.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) many long-short pairs (d) a straight line
  29. 29.Which drawing is the symbol for a junction? (a) a circle with a cross (b) one tall, one short bar (c) a plain rectangle (d) a dot where wires meet
  30. 30.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with M inside (c) a line lifted at a gap (d) a circle with an X in it
  31. 31.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) a straight line (d) a circle with V inside
  32. 32.True or false: triangle, bar and arrows is the symbol for a junction. (a) False (b) True
  33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  34. 34.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) ammeter (c) bulb (d) junction
  36. 36.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  37. 37.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
  38. 38.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  39. 39.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  40. 40.True or false: a straight line is the symbol for an LED. (a) True (b) False

Answer key

  1. LED
  2. straight lines
  3. the longer line
  4. wire
  5. resistor
  6. two equal parallel lines
  7. cell
  8. False
  9. quick and clear for all
  10. False
  11. True
  12. cell
  13. False
  14. False
  15. False
  16. True
  17. False
  18. bulb
  19. True
  20. ammeter
  21. False
  22. False
  23. motor
  24. a circle with M inside
  25. False
  26. capacitor
  27. False
  28. a long and a short line
  29. a dot where wires meet
  30. a circle with an X in it
  31. a plain rectangle
  32. False
  33. True
  34. False
  35. bulb
  36. True
  37. False
  38. True
  39. True
  40. False

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